Gyo Chang Choi

The many faces of Meckel's diverticulum and its complications.

Meckels diverticulum is the most frequent congenital malformation of the gastrointestinal tract, occurring in 2% of the general population. Meckels diverticulum is usually asymptomatic and found incidentally. However, the lifetime risk of complications is 4–40%. In this essay, we describe the clinical and imaging findings in 12 cases of Meckels diverticula with complications over a 5‐year period, which were confirmed pathologically. The major complications of Meckels diverticulum include gastrointestinal bleeding, bowel obstruction, perforation and inflammation. Small bowel follow‐through (SBFT), computed tomography (CT) including CT enterography and RI scintigraphy can be used to show typical imaging features of Meckels diverticulum and its complications. Knowledge of the clinical and radiologic findings of Meckels diverticulum can aid in the early and accurate diagnosis of this anomaly and its complications.

Pancreas Ductal Adenocarcinoma and its Mimics: Review of Cross-sectional Imaging Findings for Differential Diagnosis

Ductal adenocarcinoma is the most common pancreatic neoplasm. A variety of pancreatic lesions mimic pancreas ductal adenocarcinoma (PDAC), such as high-grade neuroendocrine tumors, small solid pseudopapillary tumors, metastases, focal autoimmune pancreatitis, and groove pancreatitis. These occasionally look similar in images, but they have differential diagnosis points. Familiarity with the imaging features of PDAC and its mimics is paramount for correct diagnosis and management of patients. In this essay, we describe imaging findings of PDAC and its mimics for differential diagnosis.